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Install Windows 7 From USB Stick Easily [UNetbootin]

Although there are number of methods available on different blogs through which you can install Windows 7 on USB drive but here is a simplest one. It don't need any DOS commands manipulation like other methods. You can now create Windows 7 installation flash drive with just 2 clicks. Installing Windows 7 from USB is much more fast and ofcourse it saves you from buying and burning ISO on a new DVD.

Requirements / Prerequisites

  1. USB Stick [4 GB Minimum]
  2. Windows 7 ISO Image file
  3. UNetbootin

First download UNetbootin for Windows and Linux. There is no need to install, just double click on UNetbootin.exe to launch UNetbootin. Now in Diskimage choose ISO file you have downloaded. Now select Type as USB Drive and choose drive letter of your USB stick. Once done, your settings should be just like the screenshot below.

UNetbootin Windows 7

Hit OK and it will take 10 to 15 minutes for copying and extracting files to USB. After that your USB will become bootable.

UNetbootin Windows 7 Progress

Now restart your system. Press DEL to go to your BIOS settings. In boot devices priority settings, choose boot from USB flash drives first. Restart your system after saving changes to your BIOS. Now you will see Windows 7 setup being initialized from your USB. Enjoy fast installation.

UNetbootin Windows 7 Setup Initialized

Even though UNetbootin is basically made to create USB sticks capable of booting various Linux distros but i am amazed that it also worked for Windows too.

Download UNetbootin For Windows | Linux
Download Windows 7 Final ISO + Activator

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    christian8 years, 6 months ago

    My windows xp wont boot the usb

    Robson Cordeiro8 years, 9 months ago

    Good to know, yumi is a great tool too, but i didn’t know that unetbootin can create win 7 stick.

    oracle2b8 years, 10 months ago

    use build 494,  It allows you to choose any device as a target including ntfs partitions. Just used it to succesfully install windows 7 pro.

      Hugo8 years, 10 months ago

      I downloaded build 494, but it still doesn’t seem to recognise my NTFS usb stick

    fredneedle9 years ago

    This will only work if you are creating the USB stick under a Windows environment as if, like me you are running Linux (Ubuntu 10.04 LTS – the Lucid Lynx) then unetbootin581 will not recognise a USB drive formated to NTFS.  It will suggest that, “If you have already connected the drive then reformat the drive to FAT32”.  Which is all well and good but then you get the problem mentioned earlier where you just see the count down timer returning to 10 seconds and never will it boot.

    Asianaddict289 years, 9 months ago

    this did not work for me. I am using Lucid Linux. and yes the copy of windows 7 does work.

    Leo9 years, 11 months ago

    *************** Please take note of the NTFS requirement people ****************

    Author you said mention this at the beginning of your guide to save people the time of having to reformat after installing.


    Kirk10 years, 3 months ago

    Thanks Del. The original instructions should have been clear about the NTFS requirement.

    Del10 years, 7 months ago


    1. If you get NTLDR missing, you are not booting from USB first. Either change the order of your boot devices in the BIOS, or press F12 on startup.

    2. If you get a screen that counts down from 10, and says automatically load in 10 seconds, and repeats itself, never launching anything… need to format your flash drive as NTFS, not FAT32 then re-run UNetBootIn

      Eric7 years, 9 months ago

      Yes it works thank you.

    zedrec10 years, 9 months ago

    it didn’t work =(
    it says NTLDR missing …

    If anyone have any suggestions .. please let us know :)

    zedrec10 years, 9 months ago

    I have a Toshiba T130 with ubuntu running into it …

    I’ve tried almost everything to get windows back …

    I have found somewhere that I should overwrite syslinux.cfg
    I did but still nothing … I tried a lot of things but none of them worked =( ..

    anyway .. I found somewhere that it’s because I am not using NTFS …
    it’s true I was using FAT32 …

    now I am trying with NTFS, files are still copying (I am still waiting)
    I will let you know if it works with NTFS

    I hope it will …

    Zubair10 years, 9 months ago

    I have done this and then when i restart the windows to boot from usb it says “invalid or corupted kernel image” what can i do?

    Ashish Sharma10 years, 11 months ago

    You can use the following utility for the same:

    Radu10 years, 11 months ago

    yeahhhhhhhhh!!!!!!!!!!!!!!! WinToFlash rulesss…100% working for windows 7…you just need a USB(4 GB min) and WinToFlash and ofcourse windows 7…for xp its not working…maybe I did something wrong I dont know…but for windows 7 its 100% working…

    JR11 years, 7 months ago

    Dude, what are you smoking?

    Unetbootin creates a linux bootloader which can load linux programmes. That’s why their website gives a list of Linux distributions which ***don’t*** work with Unetbootin, as well as those which do.

    I don’t see Windows anywhere on either list.

    But I tried it out with a Windows 7 ISO, and guess what it runs a Linux menu with one option, ‘Default’ which doesn’t do anything – since there’s nothing for it to do.

      Etaine9 years, 10 months ago

      Your drive was formatted with fat32. Plug it into another computer and run “convert (drive letter): /fs:ntfs

    Dragos12 years ago

    There is a dedicated app only for formatting USB sticks and copy the Windows installation CD. It is called WinToFlash. Check it here:

    Taemojitsu12 years ago

    edit: this did not work for me. It creates a Linux bootup process that mentions Initd and other stuff and won’t boot into Windows. The easier way is just to copy all files manually from the ISO to the disk, and flag it as ‘boot’ using gparted. Reformatting the USB drive as ntfs might not be necessary, but it’s what I did and it successfully booted for my hardware and BIOS.

    Taemojitsu12 years ago

    Thank you for this helpful tutorial, I was trying to make sure unetbootin worked for windows iso too.